Heat transfer with radiative transfer are very important in astronomy, combustion and climatology, to name a few. For the atmosphere the reader is sent to [1]},[2]}, [3]}, the numerically oriented book [4]} and the two mathematically oriented books [5]} and [6]}.
Due to the considerable difference of length scales, modelling at the level of photons is difficult to use for the earth atmosphere in large areas. A much simpler formulation, known as the radiative transfer equations, is based on energy conservation principles of continuum mechanics.
